Scientists believe that now fewer than a hundred of the whales ply the waters near Alaska.
We were told that whale sharks, whales and dolphins are abundant during the summer, between November and April.
By the Miocene, whales of both lineages are relatively common fossils in many marine deposits.
Sea lions, harbor seals, sea otters, porpoise and whales are common around the islands.
As many as four generations of whales live together in some of these matrilineal groups.
Dugongs are one of those sea creatures like porpoises and whales which should be completely protected by law.
Orkney folk are being urged to keep a look out for whales , dolphins and porpoises this weekend.
It is our hope and prayer that the humpback and other whales will be protected in the West Indies and other parts of the world.
Native peoples are still allowed to hunt these whales for food.
Acoustical energy generated by the bodies of whales or large schools of fish can be lower still.